题解 | #牛群的最短路径#
牛群的最短路径
https://www.nowcoder.com/practice/c07472106bfe430b8e2f55125d817358
import java.util.*;
/*
* public class TreeNode {
* int val = 0;
* TreeNode left = null;
* TreeNode right = null;
* public TreeNode(int val) {
* this.val = val;
* }
* }
*/
public class Solution {
/**
* 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可
*
*
* @param root TreeNode类
* @return int整型
*/
int min=100;
public int minDepth (TreeNode root) {
// write code here
if(root==null){
return 0;
}
inorder(root,1);
return min;
}
public void inorder(TreeNode root, int cur){
if(root==null){
return;
}
if(root.left==null&&root.right==null){
min=Math.min(cur,min);
return;
}
inorder(root.left,cur+1);
inorder(root.right,cur+1);
}
}
